\begin{thebibliography}{}
\bibitem{russelnorvig}Russel S., Norvig P.:
Artificial Intelligence:  A Modern Approach,
Pearson Education, New Jersey, 2003,
ISBN 0-13-080302-2.
\bibitem{michaelwooldridge} Wooldridge M.: 
An Introduction to MultiAgent Systems,
John Wiley \& Sons Ltd, Chchester, 2002,
ISBN 0-471-49691-X
\bibitem{ansicommonlisp}Graham P.: 
ANSI Common Lisp,
Prentice-Hall, New Jersey, 1996
ISBN 0-133-70875-6 
\bibitem{seibel}Seibel P.:
Practical Common Lisp,
Apress, Berkeley, 2005,
ISBN 9-781-59059-2397
\bibitem{amop}Kiczales G., Riveres J., Bobrow G.:
The art of metaobject protocol,
MIT Press, London, 1991,
ISBN 0-262-61074-4
\bibitem{gps}Newell, A., \& Simon, H.A.: 
GPS: A program that simulates human thought,
In H. Billings (Ed.), Lernende automaten (pp. 109-124),
R. Oldenbourg: Munchen, 1961
\end{thebibliography}
